MediaRecorder produces BlobEvents that have no timing information. [1] requested adding a DOMHighResTimestamp to said BlobEvent [2]. The Pull Request was reviewed and approved by the only two implementors of the said API, Gecko and Chrome. [1] https://github.com/w3c/mediacapture-record/issues/73 [2] https://github.com/w3c/mediacapture-record/pull/95
Docs: https://developer.mozilla.org/en-US/docs/Web/API/BlobEvent https://developer.mozilla.org/en-US/docs/Web/API/BlobEvent/timecode https://developer.mozilla.org/en-US/docs/Web/API/BlobEvent/BlobEvent